Tech WondersPlay

Zone 16

Launch Pad

Nine lessons of about three minutes each, every one with a live demo and a quick test.

  • Space, GPS & Maps×2
  • Mind-Bending Math & Games×2
  • Data & Probability
  • Mind & Perception
  • The Internet & Web
  • Security & Scams
  • Codes, Cryptography & Blockchain
Play this zone
  1. 136Myth-bustingYou Can't See the Great Wall From SpaceThe famous claim is a myth
  2. 137Data VisualizationThe Chart That LiesCut the bottom off an axis and a tiny change looks huge
  3. 138History of ScienceMeasuring the Earth With a StickOver 2,000 years ago a scholar measured the planet with shadows
  4. 139PerceptionThe Three BowlsOne hand says warm, the other says cold, in the same water
  5. 140GeometryWhy Bees Build HexagonsHexagons hold the most honey with the least wax
  6. 141Web TechnologyWhy 404?The famous ‘Not Found’ number is not a room at CERN
  7. 142TopologyThe Möbius StripA loop of paper with only one side and one edge
  8. 143Personal SecurityThe Password ManagerOne strong vault lets every account have its own secret
  9. 144EncryptionThe Only Perfect CipherA one-time pad is unbreakable if you never, ever reuse it